Once something had been deleted, we are not able to retrieve it. We're sorry we don't have better news.
If your site was published, the latest version will still be published on the Internet. We suggest that you go to your published site and try to retrieve as much as you can. Granted, you won't be able to copy and paste images back into your site but will need to add them in the same manner you did initially, you can salvage the text. When you copy and paste it from the page, make sure to first copy and paste it into a program such as a Notepad or TextEdit to remove any extra formatting.
We hope you will be able to use this idea while you rebuild the page if we had another alternative we would gladly offer it.